fix: real preset data for all VST2/VST3 plugins, template system with ground-truth registry

- Extracted preset data from all_plugins_v2.rpp for 14 previously broken plugins
- Fixed PLUGIN_REGISTRY entries: Kontakt 7, Gullfoss, ValhallaDelay, VC 160/76, The Glue
- Template parser falls back to PLUGIN_PRESETS when source RPP has fake data
- Substitute Transient Master (not installed) with FabFilter Pro-C 2
- All 25 plugins now load correctly in REAPER
- Added template generator scripts and ground truth references
- Cleaned up temp/debug files from output/

scripts/generate_registry_code.py

@@ -0,0 +1,70 @@
+#!/usr/bin/env python
+"""Generate registry code from parsed_plugins.json."""
+import json
+from pathlib import Path
+
+plugins = json.loads(Path("output/parsed_plugins.json").read_text())
+
+# We prefer VST3 over VST2 when both exist for the same plugin
+# Build a map, VST3 overrides VST2
+seen_keys = {}
+for p in plugins:
+    key = p['key']
+    if key in seen_keys:
+        existing = seen_keys[key]
+        # Prefer VST3 over VST2
+        if p['is_vst3'] and not existing['is_vst3']:
+            seen_keys[key] = p
+        # Prefer VST3i/VSTi instruments
+        elif p['display_name'].startswith('VST3i') and not existing['display_name'].startswith('VST3i'):
+            seen_keys[key] = p
+        elif p['display_name'].startswith('VSTi') and not existing['display_name'].startswith('VSTi'):
+            seen_keys[key] = p
+    else:
+        seen_keys[key] = p
+
+# Deduplicated
+final = sorted(seen_keys.values(), key=lambda p: p['key'])
+
+print(f"Unique plugins after dedup: {len(final)}")
+
+# Generate registry code
+lines = []
+lines.append("# Auto-generated from output/all_plugins_v2.rpp (REAPER ground truth)")
+lines.append("# Format: key → (display_name, filename, uid_guid)")
+lines.append("PLUGIN_REGISTRY: dict[str, tuple[str, str, str]] = {")
+for p in final:
+    dn = p['display_name']
+    fn = p['filename']
+    ug = p['uid_guid']
+    # Quote filename if it has spaces
+    if ' ' in fn or not p['is_vst3']:
+        fn_str = f'"{fn}"'
+    else:
+        fn_str = f'"{fn}"'
+    lines.append(f'    "{p["key"]}": (')
+    lines.append(f'        "{dn}",')
+    lines.append(f'        {fn_str},')
+    lines.append(f'        "{ug}",')
+    lines.append(f'    ),')
+lines.append("}")
+
+# Generate presets code
+lines.append("")
+lines.append("# Auto-generated preset data from output/all_plugins_v2.rpp")
+lines.append("PLUGIN_PRESETS: dict[str, list[str]] = {")
+for p in final:
+    if p['preset_lines']:
+        lines.append(f'    "{p["key"]}": [')
+        for pl in p['preset_lines']:
+            lines.append(f'        "{pl}",')
+        lines.append(f'    ],')
+    else:
+        lines.append(f'    "{p["key"]}": [],')
+lines.append("}")
+
+Path("output/registry_code.py").write_text('\n'.join(lines), encoding='utf-8')
+print(f"Generated output/registry_code.py ({len(lines)} lines)")
+print(f"\nSample entries:")
+for p in final[:5]:
+    print(f'  "{p["key"]}": ("{p["display_name"]}", "{p["filename"]}", "{p["uid_guid"]}")')